US20090225425A1 - Optical resin composition having excellent impact resistance and method for fabricating optical lens using the same - Google Patents
Optical resin composition having excellent impact resistance and method for fabricating optical lens using the same Download PDFInfo
- Publication number
- US20090225425A1 US20090225425A1 US12/398,545 US39854509A US2009225425A1 US 20090225425 A1 US20090225425 A1 US 20090225425A1 US 39854509 A US39854509 A US 39854509A US 2009225425 A1 US2009225425 A1 US 2009225425A1
- Authority
- US
- United States
- Prior art keywords
- resin composition
- weight
- phosphate
- hydroxy
- optical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 230000003287 optical effect Effects 0.000 title claims abstract description 87
- 239000011342 resin composition Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims description 8
- 239000000203 mixture Substances 0.000 claims abstract description 68
- JOBBTVPTPXRUBP-UHFFFAOYSA-N [3-(3-sulfanylpropanoyloxy)-2,2-bis(3-sulfanylpropanoyloxymethyl)propyl] 3-sulfanylpropanoate Chemical compound SCCC(=O)OCC(COC(=O)CCS)(COC(=O)CCS)COC(=O)CCS JOBBTVPTPXRUBP-UHFFFAOYSA-N 0.000 claims abstract description 27
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims abstract description 19
- 239000005058 Isophorone diisocyanate Substances 0.000 claims abstract description 19
- 239000006096 absorbing agent Substances 0.000 claims abstract description 19
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000004033 plastic Substances 0.000 claims abstract description 18
- 229920003023 plastic Polymers 0.000 claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 239000011248 coating agent Substances 0.000 claims abstract description 16
- 238000000576 coating method Methods 0.000 claims abstract description 16
- 230000005484 gravity Effects 0.000 claims abstract description 14
- 239000003505 polymerization initiator Substances 0.000 claims abstract description 13
- 239000007787 solid Substances 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- -1 phosphate ester Chemical class 0.000 claims description 12
- 229910019142 PO4 Inorganic materials 0.000 claims description 10
- RUDUCNPHDIMQCY-UHFFFAOYSA-N [3-(2-sulfanylacetyl)oxy-2,2-bis[(2-sulfanylacetyl)oxymethyl]propyl] 2-sulfanylacetate Chemical compound SCC(=O)OCC(COC(=O)CS)(COC(=O)CS)COC(=O)CS RUDUCNPHDIMQCY-UHFFFAOYSA-N 0.000 claims description 10
- 239000010452 phosphate Substances 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 7
- 150000003606 tin compounds Chemical class 0.000 claims description 7
- 230000003028 elevating effect Effects 0.000 claims description 6
- WRKCIHRWQZQBOL-UHFFFAOYSA-N octyl dihydrogen phosphate Chemical compound CCCCCCCCOP(O)(O)=O WRKCIHRWQZQBOL-UHFFFAOYSA-N 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 5
- IYAZLDLPUNDVAG-UHFFFAOYSA-N 2-(benzotriazol-2-yl)-4-(2,4,4-trimethylpentan-2-yl)phenol Chemical compound CC(C)(C)CC(C)(C)C1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 IYAZLDLPUNDVAG-UHFFFAOYSA-N 0.000 claims description 4
- 238000000137 annealing Methods 0.000 claims description 4
- SODJJEXAWOSSON-UHFFFAOYSA-N bis(2-hydroxy-4-methoxyphenyl)methanone Chemical compound OC1=CC(OC)=CC=C1C(=O)C1=CC=C(OC)C=C1O SODJJEXAWOSSON-UHFFFAOYSA-N 0.000 claims description 4
- CWZPGMMKDANPKU-UHFFFAOYSA-L butyl-di(dodecanoyloxy)tin Chemical compound CCCC[Sn+2].CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O CWZPGMMKDANPKU-UHFFFAOYSA-L 0.000 claims description 4
- WZPMZMCZAGFKOC-UHFFFAOYSA-N diisopropyl hydrogen phosphate Chemical compound CC(C)OP(O)(=O)OC(C)C WZPMZMCZAGFKOC-UHFFFAOYSA-N 0.000 claims description 4
- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical group CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- SXJSETSRWNDWPP-UHFFFAOYSA-N (2-hydroxy-4-phenylmethoxyphenyl)-phenylmethanone Chemical compound C=1C=C(C(=O)C=2C=CC=CC=2)C(O)=CC=1OCC1=CC=CC=C1 SXJSETSRWNDWPP-UHFFFAOYSA-N 0.000 claims description 3
- ARVUDIQYNJVQIW-UHFFFAOYSA-N (4-dodecoxy-2-hydroxyphenyl)-phenylmethanone Chemical compound OC1=CC(OCCCCCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 ARVUDIQYNJVQIW-UHFFFAOYSA-N 0.000 claims description 3
- XFRVVPUIAFSTFO-UHFFFAOYSA-N 1-Tridecanol Chemical compound CCCCCCCCCCCCCO XFRVVPUIAFSTFO-UHFFFAOYSA-N 0.000 claims description 3
- ZXDDPOHVAMWLBH-UHFFFAOYSA-N 2,4-Dihydroxybenzophenone Chemical compound OC1=CC(O)=CC=C1C(=O)C1=CC=CC=C1 ZXDDPOHVAMWLBH-UHFFFAOYSA-N 0.000 claims description 3
- ZMWRRFHBXARRRT-UHFFFAOYSA-N 2-(benzotriazol-2-yl)-4,6-bis(2-methylbutan-2-yl)phenol Chemical compound CCC(C)(C)C1=CC(C(C)(C)CC)=CC(N2N=C3C=CC=CC3=N2)=C1O ZMWRRFHBXARRRT-UHFFFAOYSA-N 0.000 claims description 3
- LHPPDQUVECZQSW-UHFFFAOYSA-N 2-(benzotriazol-2-yl)-4,6-ditert-butylphenol Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC(N2N=C3C=CC=CC3=N2)=C1O LHPPDQUVECZQSW-UHFFFAOYSA-N 0.000 claims description 3
- WXHVQMGINBSVAY-UHFFFAOYSA-N 2-(benzotriazol-2-yl)-4-tert-butylphenol Chemical compound CC(C)(C)C1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 WXHVQMGINBSVAY-UHFFFAOYSA-N 0.000 claims description 3
- UWSMKYBKUPAEJQ-UHFFFAOYSA-N 5-Chloro-2-(3,5-di-tert-butyl-2-hydroxyphenyl)-2H-benzotriazole Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC(N2N=C3C=C(Cl)C=CC3=N2)=C1O UWSMKYBKUPAEJQ-UHFFFAOYSA-N 0.000 claims description 3
- OZFLRNPZLCUVFP-UHFFFAOYSA-N 8-methylnonyl dihydrogen phosphate Chemical compound CC(C)CCCCCCCOP(O)(O)=O OZFLRNPZLCUVFP-UHFFFAOYSA-N 0.000 claims description 3
- ISKQADXMHQSTHK-UHFFFAOYSA-N [4-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=C(CN)C=C1 ISKQADXMHQSTHK-UHFFFAOYSA-N 0.000 claims description 3
- WXNRYSGJLQFHBR-UHFFFAOYSA-N bis(2,4-dihydroxyphenyl)methanone Chemical compound OC1=CC(O)=CC=C1C(=O)C1=CC=C(O)C=C1O WXNRYSGJLQFHBR-UHFFFAOYSA-N 0.000 claims description 3
- RJGHQTVXGKYATR-UHFFFAOYSA-L dibutyl(dichloro)stannane Chemical compound CCCC[Sn](Cl)(Cl)CCCC RJGHQTVXGKYATR-UHFFFAOYSA-L 0.000 claims description 3
- HTDKEJXHILZNPP-UHFFFAOYSA-N dioctyl hydrogen phosphate Chemical compound CCCCCCCCOP(O)(=O)OCCCCCCCC HTDKEJXHILZNPP-UHFFFAOYSA-N 0.000 claims description 3
- QPPQHRDVPBTVEV-UHFFFAOYSA-N isopropyl dihydrogen phosphate Chemical group CC(C)OP(O)(O)=O QPPQHRDVPBTVEV-UHFFFAOYSA-N 0.000 claims description 3
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical compound OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 claims description 3
- DXGLGDHPHMLXJC-UHFFFAOYSA-N oxybenzone Chemical compound OC1=CC(OC)=CC=C1C(=O)C1=CC=CC=C1 DXGLGDHPHMLXJC-UHFFFAOYSA-N 0.000 claims description 3
- 150000003008 phosphonic acid esters Chemical class 0.000 claims description 3
- XHCSHVAFTDDATO-UHFFFAOYSA-N phosphoric acid;tridecan-1-ol Chemical compound OP(O)(O)=O.CCCCCCCCCCCCCO.CCCCCCCCCCCCCO XHCSHVAFTDDATO-UHFFFAOYSA-N 0.000 claims description 3
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 claims description 3
- GCTFWCDSFPMHHS-UHFFFAOYSA-M Tributyltin chloride Chemical compound CCCC[Sn](Cl)(CCCC)CCCC GCTFWCDSFPMHHS-UHFFFAOYSA-M 0.000 claims description 2
- YYYMFKRTPPSNJH-UHFFFAOYSA-N [Sn+] Chemical compound [Sn+] YYYMFKRTPPSNJH-UHFFFAOYSA-N 0.000 claims description 2
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 2
- PBIBSLUOIOVPLU-UHFFFAOYSA-N bis(2-ethylhexyl)-oxotin Chemical compound CCCCC(CC)C[Sn](=O)CC(CC)CCCC PBIBSLUOIOVPLU-UHFFFAOYSA-N 0.000 claims description 2
- OCWYEMOEOGEQAN-UHFFFAOYSA-N bumetrizole Chemical compound CC(C)(C)C1=CC(C)=CC(N2N=C3C=C(Cl)C=CC3=N2)=C1O OCWYEMOEOGEQAN-UHFFFAOYSA-N 0.000 claims description 2
- YMLFYGFCXGNERH-UHFFFAOYSA-K butyltin trichloride Chemical compound CCCC[Sn](Cl)(Cl)Cl YMLFYGFCXGNERH-UHFFFAOYSA-K 0.000 claims description 2
- KWTSZCJMWHGPOS-UHFFFAOYSA-M chloro(trimethyl)stannane Chemical compound C[Sn](C)(C)Cl KWTSZCJMWHGPOS-UHFFFAOYSA-M 0.000 claims description 2
- JJPZOIJCDNHCJP-UHFFFAOYSA-N dibutyl(sulfanylidene)tin Chemical compound CCCC[Sn](=S)CCCC JJPZOIJCDNHCJP-UHFFFAOYSA-N 0.000 claims description 2
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 2
- PKKGKUDPKRTKLJ-UHFFFAOYSA-L dichloro(dimethyl)stannane Chemical compound C[Sn](C)(Cl)Cl PKKGKUDPKRTKLJ-UHFFFAOYSA-L 0.000 claims description 2
- NJVOZLGKTAPUTQ-UHFFFAOYSA-M fentin chloride Chemical compound C=1C=CC=CC=1[Sn](C=1C=CC=CC=1)(Cl)C1=CC=CC=C1 NJVOZLGKTAPUTQ-UHFFFAOYSA-M 0.000 claims description 2
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 claims description 2
- LTSUHJWLSNQKIP-UHFFFAOYSA-J tin(iv) bromide Chemical compound Br[Sn](Br)(Br)Br LTSUHJWLSNQKIP-UHFFFAOYSA-J 0.000 claims description 2
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 claims description 2
- QPBYLOWPSRZOFX-UHFFFAOYSA-J tin(iv) iodide Chemical compound I[Sn](I)(I)I QPBYLOWPSRZOFX-UHFFFAOYSA-J 0.000 claims description 2
- YFRLQYJXUZRYDN-UHFFFAOYSA-K trichloro(methyl)stannane Chemical compound C[Sn](Cl)(Cl)Cl YFRLQYJXUZRYDN-UHFFFAOYSA-K 0.000 claims description 2
- 238000004043 dyeing Methods 0.000 abstract description 4
- 239000000975 dye Substances 0.000 description 19
- 239000000243 solution Substances 0.000 description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 238000001723 curing Methods 0.000 description 9
- 239000000178 monomer Substances 0.000 description 8
- 238000006116 polymerization reaction Methods 0.000 description 8
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 7
- 238000005187 foaming Methods 0.000 description 7
- 229910052814 silicon oxide Inorganic materials 0.000 description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 239000011521 glass Substances 0.000 description 6
- 238000002834 transmittance Methods 0.000 description 6
- ROLAGNYPWIVYTG-UHFFFAOYSA-N 1,2-bis(4-methoxyphenyl)ethanamine;hydrochloride Chemical compound Cl.C1=CC(OC)=CC=C1CC(N)C1=CC=C(OC)C=C1 ROLAGNYPWIVYTG-UHFFFAOYSA-N 0.000 description 5
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 5
- 102100023397 tRNA dimethylallyltransferase Human genes 0.000 description 5
- 101710103876 tRNA dimethylallyltransferase Proteins 0.000 description 5
- 229910001928 zirconium oxide Inorganic materials 0.000 description 5
- BKUSIKGSPSFQAC-RRKCRQDMSA-N 2'-deoxyinosine-5'-diphosphate Chemical compound O1[C@H](CO[P@@](O)(=O)OP(O)(O)=O)[C@@H](O)C[C@@H]1N1C(NC=NC2=O)=C2N=C1 BKUSIKGSPSFQAC-RRKCRQDMSA-N 0.000 description 4
- JHQVCQDWGSXTFE-UHFFFAOYSA-N 2-(2-prop-2-enoxycarbonyloxyethoxy)ethyl prop-2-enyl carbonate Chemical compound C=CCOC(=O)OCCOCCOC(=O)OCC=C JHQVCQDWGSXTFE-UHFFFAOYSA-N 0.000 description 4
- PSXUKPCAIKETHF-UHFFFAOYSA-N 2-[4-[3-[4-(4,5-dihydro-1h-imidazol-2-yl)phenoxy]propoxy]phenyl]-4,5-dihydro-1h-imidazole Chemical compound C=1C=C(C=2NCCN=2)C=CC=1OCCCOC(C=C1)=CC=C1C1=NCCN1 PSXUKPCAIKETHF-UHFFFAOYSA-N 0.000 description 4
- 102100029579 Diphosphoinositol polyphosphate phosphohydrolase 1 Human genes 0.000 description 4
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- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
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- SRUQARLMFOLRDN-UHFFFAOYSA-N 1-(2,4,5-Trihydroxyphenyl)-1-butanone Chemical compound CCCC(=O)C1=CC(O)=C(O)C=C1O SRUQARLMFOLRDN-UHFFFAOYSA-N 0.000 description 2
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
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- NUHSROFQTUXZQQ-UHFFFAOYSA-N isopentenyl diphosphate Chemical compound CC(=C)CCO[P@](O)(=O)OP(O)(O)=O NUHSROFQTUXZQQ-UHFFFAOYSA-N 0.000 description 2
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- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- PCLYNGPHRCACSA-UHFFFAOYSA-N pentane-1,2,5-trithiol Chemical compound SCCCC(S)CS PCLYNGPHRCACSA-UHFFFAOYSA-N 0.000 description 1
- DGBWPZSGHAXYGK-UHFFFAOYSA-N perinone Chemical compound C12=NC3=CC=CC=C3N2C(=O)C2=CC=C3C4=C2C1=CC=C4C(=O)N1C2=CC=CC=C2N=C13 DGBWPZSGHAXYGK-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- BWJUFXUULUEGMA-UHFFFAOYSA-N propan-2-yl propan-2-yloxycarbonyloxy carbonate Chemical compound CC(C)OC(=O)OOC(=O)OC(C)C BWJUFXUULUEGMA-UHFFFAOYSA-N 0.000 description 1
- YPVDWEHVCUBACK-UHFFFAOYSA-N propoxycarbonyloxy propyl carbonate Chemical compound CCCOC(=O)OOC(=O)OCCC YPVDWEHVCUBACK-UHFFFAOYSA-N 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 150000003333 secondary alcohols Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- CWERGRDVMFNCDR-UHFFFAOYSA-M thioglycolate(1-) Chemical compound [O-]C(=O)CS CWERGRDVMFNCDR-UHFFFAOYSA-M 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
- C08G18/3855—Low-molecular-weight compounds having heteroatoms other than oxygen having sulfur
- C08G18/3876—Low-molecular-weight compounds having heteroatoms other than oxygen having sulfur containing mercapto groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
- C08G18/722—Combination of two or more aliphatic and/or cycloaliphatic polyisocyanates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—Lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
Definitions
- the present invention relates to an optical resin composition with superior impact resistance and a method for producing an optical lens using the composition. More specifically, the present invention relates to a plastic optical resin composition that has superior impact resistance as well as light-weight, superior moldability, excellent dyeing ability, a high Abbe number and good transparency, and a method for producing an optical lens from the composition.
- Plastic optical lenses are generally used due to superior impact resistance, light-weight and superior moldability, as compared to glass lenses.
- One aspect of the invention is a plastic optical resin composition with superior impact resistance as well as light-weight, superior moldability, excellent dyeing ability, a high Abbe number and good transparency, and an optical lens produced from the composition maintains superior impact resistance even after hard-coating and multi-coating (anti-reflective coating).
- the optical lens with superior impact resistance as well as good optical properties is obtained by thermally curing the plastic optical resin composition to obtain an optical lens, and hard-coating and multi-coating the optical lens, wherein the plastic optical resin composition comprises: 30 to 60% by weight of a mixture of isophorone diisocyanate and hexamethylene diisocyanate; 40 to 70% by weight of pentaerythritol tetrakis(3-mercaptopropionate); 0.005 to 6% by weight of a UV absorber; 0.001 to 5% by weight of a release agent; and 0.01 to 5% by weight of a polymerization initiator.
- the plastic optical resin composition comprises: 30 to 60% by weight of a mixture of isophorone diisocyanate and hexamethylene diisocyanate; 40 to 70% by weight of pentaerythritol tetrakis(3-mercaptopropionate); 0.005 to 6% by weight of a UV absorber; 0.001 to 5%
- Another aspect of the present invention is an optical resin composition with superior impact resistance that has a solid refractive index (nD) of 1.53 to 1.57, an Abbe number of 35 to 48, a liquid specific gravity of 0.97 to 1.25 and a solid specific gravity of 1.10 to 1.35, which comprises: (a) 30 to 60% by weight of a mixture of isophorone diisocyanate and hexamethylene diisocyanate; (b) 40 to 70% by weight of pentaerythritol tetrakis(3-mercaptopropionate) or a mixture of pentaerythritol tetrakis(3-mercaptopropionate) and pentaerythritol tetrakis(mercaptoacetate); (c) 0.005 to 6% by weight of a UV absorber, 0.001 to 5% by weight of a release agent and 0.01 to 5% by weight of a polymerization initiator, based on the total weight of the components (a) and (
- Another aspect of the present invention is an optical lens produced by thermally curing the optical resin composition.
- the optical resin composition has a liquid viscosity of 20 to 160 cps (at 20° C.).
- Another aspect of the invention is an optical resin composition
- an optical resin composition comprising: (a) about 30% to about 60% by weight of a mixture of isophorone diisocyanate and hexamethylene diisocyanate; (b) about 40% to about 70% by weight of pentaerythritol tetrakis(3-mercaptopropionate), or a mixture of pentaerythritol tetrakis(3-mercaptopropionate) and pentaerythritol tetrakis(mercaptoacetate); (c) about 0.005% to about 6% by weight of a UV absorber, about 0.001% to about 5% by weight of a release agent and about 0.01% to about 5% by weight of a polymerization initiator, based on the total weight of the components (a) and (b), wherein the composition has a solid refractive index (nD) of about 1.53 to about 1.57, an Abbe number of about 35 to about 48, a liquid
- the isophorone diisocyanate is used in an amount of not more than about 0.6 mol, with respect to about 1 mol of the hexamethylene diisocyanate.
- the optical resin composition has a liquid viscosity of about 20 cps to 160 cps at about 20° C.
- the content of the pentaerythritol tetrakis(mercaptoacetate) is not more than about 50%, with respect to the pentaerythritol tetrakis(3-mercaptopropionate).
- Another aspect of the invention is a method for producing a spectacle lens comprising: injecting a resin composition into a reactor, the resin composition comprising: (a) about 0% to about 60% by weight of a mixture of isophorone diisocyanate and hexamethylene diisocyanate; (b) about 0% to about 70% by weight of pentaerythritol tetrakis(3-mercaptopropionate) or a mixture of pentaerythritol tetrakis(3-mercaptopropionate) and pentaerythritol tetrakis(mercaptoacetate); (c) about 0.005% to about 6% by weight of a UV absorber, about 0.001% to about 5% by weight of a release agent, and about 0.01% to about 5% by weight of a polymerization initiator, based on the total weight of the components (a) and (b), replacing the air in the reactor by nitrogen, stirring the composition under reduced pressure for about 2 hours,
- both sides of the lenses have been multi-coated with a material such as SiO 2 or ZrO 2 .
- a multi-coating undesirably causes a deterioration in impact resistance of the lens, which is common to all lenses, e.g., low-, medium-, high- and super high-refractive index lenses.
- plastic optical lenses central thickness: 1.2 mm
- Korean Patent Publication No. 1992-0004464 discloses preparation of a medium-refractive lens from diallyl isophthalate, polyhydric alcohol-containing diallyl isophthalate and diethylene glycol bis(allylcarbonate) copolymers, and Korean Patent Publication No.
- 1993-0010567 discloses preparation of a medium-refractive plastic lens (with a central thickness of 1.2 mm) using modified-diallyl isophthalate, where polyhydric alcohols are grafted into diallyl isophthalate, so as to improve impact strength, as compared to cases where diallyl isophthalate, modified-diallyl isophthalate or modified-diethylene glycol bis(allylcarbonate) copolymers are used singly.
- these medium-refractive plastic lenses also fail to pass a FDA impact test following multi-coating.
- Korean Patent Publication No. 2003-0078494 discloses a method for producing an optical lens with superior impact strength, the method comprising adding secondary alcohol to isophorone diisocyanate and hexamethylene diisocyanate and curing the resulting product with pentaerythritol tetrakis(3-mercaptopropionate) or the like.
- the method has a problem of a high defect ratio of optical lens products.
- Korean Patent Publication No. 1994-0004010 discloses the use of xylene diisocyanate and 1,2-bismercaptoethyl-3-mercaptopropane copolymers to increase refractive index of lenses
- Korean Patent Registration No. 1993-0006918 discloses the use of aliphatic diisocyanate, 1,2-bismercaptoethyl-3-mercaptopropane and pentaerythritol tetrakis(3-mercaptopropionate) to improve the refractive index of lenses.
- These methods enable an increase in the refractive index of lenses, but disadvantageously fail to pass a PFA impact test following multicoating.
- a polycarbonate injection lens exhibits excellent impact resistance even after multi-coating, but has a problem of considerable modification in the center thereof due to poor heat resistance.
- diisocyanate compounds are used in a mixture of isophorone diisocyanate and hexamethylene diisocyanate.
- the isophorone diisocyanate may be used in an amount not more than about 0.6 mol, or about 0.01 mol to about 0.5 mol, with respect to about 1 mol of the hexamethylene diisocyanate.
- an optical lens suffers from problems, e.g., occurrence of a mass of bubbles and deterioration in impact resistance during curing.
- a diisocyanate compound such as m-xylene-diisocyanate, p-xylene-diisocyanate or tetrachloro-m-xylene-diisocyanate leads to a significant deterioration in impact resistance of lenses.
- a steel ball with a weight of 16.8 g is let fall from a height of 127 cm onto the center of the lens after multi-coating, the lens is undesirably broken.
- Pentaerythritol tetrakis(3-mercaptopropionate) may be used singly or in combination with pentaerythritol tetrakis(mercaptoacetate).
- One embodiment is the single use of pentaerythritol tetrakis(3-mercaptopropionate).
- the combination use of pentaerythritol tetrakis(3-mercaptopropionate) with pentaerythritol tetrakis(mercaptoacetate) results in a slight increase in heat resistance of lenses, but undesirably involves a high polymerization defect ratio due to an increased reaction rate during curing.
- such a phenomenon significantly occurs in a case where pentaerythritol tetrakis mercaptoacetate is used in an amount not less than about 50 wt %.
- the content of the UV absorber used for the composition is about 0.005% to about 6% by weight (ca. about 50 ppm to about 60,000 ppm), or about 0.1% to about 3% by weight (ca. about 1,000 ppm to about 30,000 ppm), based on the total weight of the compound.
- the content of the UV absorber is less than about 0.005% by weight, efficient UV absorbability may not be obtained, and the lens thus undergoes serious yellowing upon exposure to UV radiation.
- the UV absorber is used in an amount not less than about 6% by weight, it may not be completely soluble in the composition and polymerization may be seriously defective during curing.
- UV absorber examples include 2-(2′-hydroxy-5-methylphenyl)-2H-benzotriazole, 2-(2′-hydroxy-3′,5′-di-t-butylphenyl)-5-chloro-2H-benzotriazole, 2-(2′-hydroxy-3′-t-butyl-5′-methylphenyl)-5-chloro-2H-benzotriazole, 2-(2′-hydroxy-3′,5′-di-t-amylphenyl)-2H-benzotriazole, 2-(2′-hydroxy-3′,5′-di-t-butylphenyl)-2H-benzotriazole, 2-(2′-hydroxy-5′-t-butylphenyl)-2H-benzotriazole, 2-(2′-hydroxy-5′-t-octylphenyl)-2H-benzotriazole, 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-octy
- the UV absorber may be used singly or in combination thereof. Preferred is the use of 2-(2′-hydroxy-5′-t-octylphenyl)-2H-benzotriazole or 2,2′-dihydroxy-4,4′-dimethoxybenzophenone, each of which exhibits good UV absorbability at a wavelength not more than about 400 nm and is well soluble in the composition according to one embodiment of the present invention.
- the composition may further comprise an organic dye well-known in the art.
- the organic dye may be added in a small amount within a well-known usage.
- 1-hydroxy-4-(p-toluidine)anthraquinone available from Kyoungin Synthetic Corp.
- a PERINONETM dye are used as organic dyes.
- the release agent that can be used in one embodiment of the present invention is selected from fluorinated nonionic surfactants, silicone-based nonionic surfactants, alkyl quaternary ammonium salts, phosphate esters and phosphonic acid esters.
- the release agent may be used singly or in combination thereof.
- One embodiment is the use of phosphate ester or phosphonic acid ester.
- phosphate esters include isopropyl phosphate, diisopropyl phosphate, butyl phosphate, octyl phosphate, dioctyl phosphate, isodecyl phosphate, diisodecyl phosphate, tridecanol phosphate, bis(tridecanol) phosphate and a combination thereof.
- ZELEC UNTM available from Dupont Corp.
- the content of the release agent is about 0.001% to about 5% by weight, or about 0.05% to about 2% by weight, with respect to the weight of the monomers, in view of good demoldability and high polymerization yield.
- the polymerization initiator that can be used in one embodiment of the present invention is an amine- or tin-compound.
- tin compound examples include butyltin dilaurate, dibutyltin dichloride, dibutyltin diacetate, tin (I) octylate, dibutyltin dilaurate, tetrafluorotin, tetrachlorotin, tetrabromotin, tetraiodotin, methyltin trichloride, butyltin trichloride, dimethyltin dichloride, trimethyltin chloride, tributyltin chloride, triphenyltin chloride, dibutyltin sulfide and di(2-ethylhexyl)tin oxide.
- tin compound examples include butyltin dilaurate, dibutyltin dichloride, dibutyltin diacetate, tin (I) octylate, dibutyltin dilaurate, tetrafluorot
- the tin compound may be used singly or in combination thereof.
- the use of the tin compound causes a high polymerization yield and no foaming.
- the content of the tin compound may be about 0.01% to about 5% by weight, based on the total weight of the composition.
- a plastic optical lens in particular, a spectacle lens, is obtained by thermally curing the optical resin composition according to one embodiment of the present invention.
- a method for producing a spectacle lens by thermally curing the composition is given as follows. First, after a polymerization initiator is added to the composition, air contained in a mixing container (i.e., reactor) is replaced by nitrogen, and the composition is stirred under reduced pressure for about 2 hours to about 5 hours. After completion of the stirring, the composition is defoamed under reduced pressure and injected into a mold.
- the mold may be a plastic gasket, or a glass- or metal-mold which is fixed with a polyester or polypropylene adhesive tape. The glass mold containing the composition is injected into a forced convection oven.
- the oven temperature is maintained at about 33° C.-about 37° C. over about 2 hours, elevated to about 38-about 42° C. over about 3 hours, elevated to about 115-about 125° C. over about 12 hours, maintained at about 115° C.-about 125° C. over about 2 hours and decreased to about 60° C.-about 80° C. over about 2 hours.
- the composition is released from the mold to obtain an optical lens.
- the optical lens thus obtained is subjected to annealing at about 100° C. to about 120° C. for about 1 hours to about 4 hours to obtain an intended plastic optical lens.
- the plastic optical lens is subjected to hard-coating and multi-coating.
- the hard coating layer is formed by impregnating a coating composition into the optical lens, or coating the composition onto the surface thereof to a thickness of about 0.5 ⁇ m to about 10 ⁇ m by spin coating, followed by heating or UV curing.
- the coating composition comprises at least one sillane compound and at least one colloidal metal oxide as main ingredients.
- the sillane compound contains one functional group selected from epoxy, alkoxy and vinyl groups. Examples of metal oxide include silicon oxide, titanium oxide, antimony oxide, tin oxide, tungsten oxide and aluminum oxide.
- a multi-coating layer i.e., an antireflective layer
- an antireflective layer is formed by vacuum-depositing or sputtering metal oxide such as silicon oxide, magnesium fluoride, aluminum oxide, zirconium oxide, titanium oxide, tantalum oxide and yttrium oxide.
- metal oxide such as silicon oxide, magnesium fluoride, aluminum oxide, zirconium oxide, titanium oxide, tantalum oxide and yttrium oxide.
- silicon oxide and zirconium oxide are vacuum-deposited three times on the hard-coating layers of the both sides of the optical lens and silicon oxide is then vacuum-deposited on the resulting structure.
- an ITO layer between the silicon oxide and the zirconium oxide may be further formed as a water layer on the outermost layer.
- the optical lens may be dyed with a dispersive dye or electrochromic dye.
- the optical resin composition is not particularly limited to plastic optical lenses. Accordingly, the composition may be utilized in various optical products.
- the air in the mixing container was replaced by nitrogen. Then, the composition was stirred under reduced pressure for 2 hours. After completion of the stirring, the composition was defoamed under reduced pressure and injected into a glass mold fixed with a polyester adhesive tape (diopter (D): ⁇ 5.00).
- the glass mold containing the composition was thermally cured in a forced convection oven under the conditions of maintaining at 35° C. over 2 hours, elevating to 40° C. over 3 hours, elevating to 120° C. over 12 hours, maintaining at 120° C. over 2 hours and decreasing to 70° C. over 2 hours. Then, the composition was released from the mold to obtain an optical lens with a central thickness of 1 mm.
- a DTM-1 model (Atacota Co., LTD.) was used as an Abbe refractometer.
- a spectrophotometer was used to measure a light transmittance.
- the specific gravity was calculated from the volume and weight which were measured by water-displacement.
- the optical lens (Deopter: ⁇ 5.00) was stood in an oven at 100° C. for 2 hours and allowed to cool to 70° C. over one hour. After the lens was taken out from the oven, it was observed whether or not the center of the lens was depressed. In a case where 8 or more out of 10 lenses are not center-depressed, it was represented by “O”. Otherwise, in a case where 3 or more out of the 10 lenses are center-depressed, it was represented by “X”.
- the optical lenses (diopter: ⁇ 5.00) were exposed to QUV/Spray model (5w) available from Q-Pannellad products for 200 hours. When the lenses were not changed in color, “O” was graded. Otherwise, “X” was graded.
- a mixture of monomers, additives and a polymerization initiator was vacuum-defoamed, injected into a glass mold and thermally-cured to produce a lens.
- the lens was graded “O”. Otherwise, the lens was graded “X”.
- An optical resin composition was prepared in the same manner as in Example 1, except that 300% by weight of diallyl therephthalate and 300% by weight of ethylene glycol bis(allyl)carbonate were mixed with 400% by weight of the component (A) represented by Formula (I) below:
- R 1 is benzene
- R 2 is a compound containing 4 carbon atoms
- m represents 1 to 4 (83%), 5 to 10 (14%), and 11 to 20 (3%).
- IPDI isophorone diisocyanate
- HMDI hexamethylene diisocyanate
- PETMP pentaerythritol tetrakis(3-mercaptopropionate)
- PETMA pentaerythritol tetrakis(mercaptoacetate)
- P-DAIPE ethylene glycol polyester oligomer isophthalate
- HMBT 2-(2′-hydroxy-5-methylphenyl)-2H-benzotriazole
- HBCBT 2-(2′-hydroxy-3′,5′-di-t-butylphenyl)-5-chloro-2H-benzotriazole
- HBMCBT 2-(2′-hydroxy-3′-t-butyl-5′-methyphenyl)-5-chloro-2H-benzotriazole
- HAPBT 2-(2′-hydroxy-3′,5′-di-t-amylphenyl)-2H-benzotriazole
- HDBPBT 2-(2′-hydroxy-3′,5′-di-t-butylphenyl)-2H-benzotriazole
- HBPBT 2-(2′-hydroxy-5′-t-butylphenyl)-2H-benzotriazole
- HOPBT 2-(2′-hydroxy-5′-t-octylphenyl)-2H-benzotriazole
- HMBP 2-hydroxy-4-methoxybenzophenone
- HOOBP 2-hydroxy-4-octyloxybenzophenone
- DHMBP 2,2′-dihydroxy-4,4′-dimethoxybenzophenone
- BHMCBT 2-(3′-t-butyl-2′-hydroxy-methylphenyl)-5-chlorobenzotriazole
- IPPT isopropyl phosphate
- DIPP diisopropyl phosphate
- DIDP diisodecyl phosphate
- TDP tridecanol phosphate
- IPP diisopropyl peroxydicarbonate
- NPP di-n-propyl peroxydicarbonate
- the optical resin composition has superior impact resistance as well as light-weight, superior moldability, excellent dyeing ability, a high Abbe number and good transparency.
- the optical lens produced from the composition maintains superior impact resistance even after hard-coating and multi-coating (anti-reflective coating). Based on these advantages, the resin composition may be widely utilized in the optical field including multicoated spectacle lenses.
Abstract
Description
- This application is a continuation application, and claims the benefit under 35 U.S.C. §§ 120 and 365 of PCT Application No. PCT/KR2007/003863, filed on Aug. 13, 2007, which is hereby incorporated by reference. PCT/KR2007/003863 claimed the benefit of Korean Patent Application No. 10-2006-0085774 filed Sep. 6, 2006, which is hereby incorporated by reference.
- The present invention relates to an optical resin composition with superior impact resistance and a method for producing an optical lens using the composition. More specifically, the present invention relates to a plastic optical resin composition that has superior impact resistance as well as light-weight, superior moldability, excellent dyeing ability, a high Abbe number and good transparency, and a method for producing an optical lens from the composition.
- Plastic optical lenses are generally used due to superior impact resistance, light-weight and superior moldability, as compared to glass lenses.
- One aspect of the invention is a plastic optical resin composition with superior impact resistance as well as light-weight, superior moldability, excellent dyeing ability, a high Abbe number and good transparency, and an optical lens produced from the composition maintains superior impact resistance even after hard-coating and multi-coating (anti-reflective coating).
- In another aspect of the present invention, the optical lens with superior impact resistance as well as good optical properties is obtained by thermally curing the plastic optical resin composition to obtain an optical lens, and hard-coating and multi-coating the optical lens, wherein the plastic optical resin composition comprises: 30 to 60% by weight of a mixture of isophorone diisocyanate and hexamethylene diisocyanate; 40 to 70% by weight of pentaerythritol tetrakis(3-mercaptopropionate); 0.005 to 6% by weight of a UV absorber; 0.001 to 5% by weight of a release agent; and 0.01 to 5% by weight of a polymerization initiator.
- Another aspect of the present invention is an optical resin composition with superior impact resistance that has a solid refractive index (nD) of 1.53 to 1.57, an Abbe number of 35 to 48, a liquid specific gravity of 0.97 to 1.25 and a solid specific gravity of 1.10 to 1.35, which comprises: (a) 30 to 60% by weight of a mixture of isophorone diisocyanate and hexamethylene diisocyanate; (b) 40 to 70% by weight of pentaerythritol tetrakis(3-mercaptopropionate) or a mixture of pentaerythritol tetrakis(3-mercaptopropionate) and pentaerythritol tetrakis(mercaptoacetate); (c) 0.005 to 6% by weight of a UV absorber, 0.001 to 5% by weight of a release agent and 0.01 to 5% by weight of a polymerization initiator, based on the total weight of the components (a) and (b).
- Another aspect of the present invention is an optical lens produced by thermally curing the optical resin composition.
- In one embodiment, the optical resin composition has a liquid viscosity of 20 to 160 cps (at 20° C.).
- Another aspect of the invention is an optical resin composition comprising: (a) about 30% to about 60% by weight of a mixture of isophorone diisocyanate and hexamethylene diisocyanate; (b) about 40% to about 70% by weight of pentaerythritol tetrakis(3-mercaptopropionate), or a mixture of pentaerythritol tetrakis(3-mercaptopropionate) and pentaerythritol tetrakis(mercaptoacetate); (c) about 0.005% to about 6% by weight of a UV absorber, about 0.001% to about 5% by weight of a release agent and about 0.01% to about 5% by weight of a polymerization initiator, based on the total weight of the components (a) and (b), wherein the composition has a solid refractive index (nD) of about 1.53 to about 1.57, an Abbe number of about 35 to about 48, a liquid specific gravity of about 0.97 to about 1.25 and a solid specific gravity of about 1.10 to about 1.35.
- In the above composition, the isophorone diisocyanate is used in an amount of not more than about 0.6 mol, with respect to about 1 mol of the hexamethylene diisocyanate. In the above composition, the optical resin composition has a liquid viscosity of about 20 cps to 160 cps at about 20° C. In the above composition, the content of the pentaerythritol tetrakis(mercaptoacetate) is not more than about 50%, with respect to the pentaerythritol tetrakis(3-mercaptopropionate).
- Another aspect of the invention is a method for producing a spectacle lens comprising: injecting a resin composition into a reactor, the resin composition comprising: (a) about 0% to about 60% by weight of a mixture of isophorone diisocyanate and hexamethylene diisocyanate; (b) about 0% to about 70% by weight of pentaerythritol tetrakis(3-mercaptopropionate) or a mixture of pentaerythritol tetrakis(3-mercaptopropionate) and pentaerythritol tetrakis(mercaptoacetate); (c) about 0.005% to about 6% by weight of a UV absorber, about 0.001% to about 5% by weight of a release agent, and about 0.01% to about 5% by weight of a polymerization initiator, based on the total weight of the components (a) and (b), replacing the air in the reactor by nitrogen, stirring the composition under reduced pressure for about 2 hours, after completion of the stirring, defoaming the composition under reduced pressure and injecting the composition into a mold; allowing the mold to stand in an oven under the conditions of maintaining at about 33° C.-about 37° C. over about 2 hours, elevating to about 38° C.-about 42° C. over about 3 hours, elevating to about 115° C.-about 125° C. over about 12 hours, maintaining at about 115° C.-about 125° C. over about 2 hours and decreasing to about 60° C.-about 80° C. over about 2 hours, and releasing the composition from the mold, to obtain an optical lens; and subjecting the optical lens to annealing at about 100° C. to about 120° C. for about 1 hour to about 4 hours.
- Recently, in an attempt to prevent scattered reflection of plastic optical lenses and improve light transmissivity thereof, both sides of the lenses have been multi-coated with a material such as SiO2 or ZrO2. However, such a multi-coating undesirably causes a deterioration in impact resistance of the lens, which is common to all lenses, e.g., low-, medium-, high- and super high-refractive index lenses.
- When a steel ball with a weight of 16.8 g (FDA standard weight) is let fall from a height of 127 cm onto the center of plastic optical lenses (central thickness: 1.2 mm), which are produced from diethylene glycol bis(allylcarbonate) as a low-refractive monomer and then multicoated, the plastic optical lenses are undesirably broken.
- Several methods for preparing medium-refractive lenses were suggested. For example, Korean Patent Publication No. 1992-0004464 discloses preparation of a medium-refractive lens from diallyl isophthalate, polyhydric alcohol-containing diallyl isophthalate and diethylene glycol bis(allylcarbonate) copolymers, and Korean Patent Publication No. 1993-0010567 discloses preparation of a medium-refractive plastic lens (with a central thickness of 1.2 mm) using modified-diallyl isophthalate, where polyhydric alcohols are grafted into diallyl isophthalate, so as to improve impact strength, as compared to cases where diallyl isophthalate, modified-diallyl isophthalate or modified-diethylene glycol bis(allylcarbonate) copolymers are used singly. However, these medium-refractive plastic lenses also fail to pass a FDA impact test following multi-coating.
- In addition, Korean Patent Publication No. 2003-0078494 discloses a method for producing an optical lens with superior impact strength, the method comprising adding secondary alcohol to isophorone diisocyanate and hexamethylene diisocyanate and curing the resulting product with pentaerythritol tetrakis(3-mercaptopropionate) or the like. However, in this case, it takes a long time to inject a resin composition into the optical lens due to high viscosity of the composition and traces of the composition which flows into the lens remain therein. As a result, the method has a problem of a high defect ratio of optical lens products.
- Several methods for preparing high-refractive and super-high refractive lenses were suggested. For example, Korean Patent Publication No. 1994-0004010 discloses the use of xylene diisocyanate and 1,2-bismercaptoethyl-3-mercaptopropane copolymers to increase refractive index of lenses, and Korean Patent Registration No. 1993-0006918 discloses the use of aliphatic diisocyanate, 1,2-bismercaptoethyl-3-mercaptopropane and pentaerythritol tetrakis(3-mercaptopropionate) to improve the refractive index of lenses. These methods enable an increase in the refractive index of lenses, but disadvantageously fail to pass a PFA impact test following multicoating.
- A polycarbonate injection lens exhibits excellent impact resistance even after multi-coating, but has a problem of considerable modification in the center thereof due to poor heat resistance.
- Embodiments of the present invention will now be described. In defining the invention, the upper and lower limits of numerical ranges provided herein are not necessarily adhered to absolutely. Some deviation which achieves the aims of the invention may be permissible, hence the use of the term “about” below. It is advantageous, however, to be fully within the given numerical range limits in most embodiments.
- In one embodiment of the present invention, diisocyanate compounds are used in a mixture of isophorone diisocyanate and hexamethylene diisocyanate. The isophorone diisocyanate may be used in an amount not more than about 0.6 mol, or about 0.01 mol to about 0.5 mol, with respect to about 1 mol of the hexamethylene diisocyanate. In a case where isophorone diisocyanate is used exclusively or in an amount not less than about 71 wt %, an optical lens suffers from problems, e.g., occurrence of a mass of bubbles and deterioration in impact resistance during curing. In an attempt to solve these problems, when the composition is subjected to vacuum-deforming stirring at a temperature of about 30° C. or higher, the foaming is decreased to some extent, but several problems occur, e.g., long composition injection time due to an increased viscosity of the composition, difficulty in removing bubbles derived from the injection and deteriorated impact resistance. In a case where isophorone diisocyanate is used in an amount not more than about 20 wt %, an optical lens has superior impact resistance, but has poor heat resistance, thus causing a multi-coated film to be cracked and modification in the center of an optical lens. Besides, the use of a diisocyanate compound such as m-xylene-diisocyanate, p-xylene-diisocyanate or tetrachloro-m-xylene-diisocyanate leads to a significant deterioration in impact resistance of lenses. Thus, when a steel ball with a weight of 16.8 g is let fall from a height of 127 cm onto the center of the lens after multi-coating, the lens is undesirably broken.
- Pentaerythritol tetrakis(3-mercaptopropionate) may be used singly or in combination with pentaerythritol tetrakis(mercaptoacetate). One embodiment is the single use of pentaerythritol tetrakis(3-mercaptopropionate). The combination use of pentaerythritol tetrakis(3-mercaptopropionate) with pentaerythritol tetrakis(mercaptoacetate) results in a slight increase in heat resistance of lenses, but undesirably involves a high polymerization defect ratio due to an increased reaction rate during curing. In particular, such a phenomenon significantly occurs in a case where pentaerythritol tetrakis mercaptoacetate is used in an amount not less than about 50 wt %.
- In one embodiment, the content of the UV absorber used for the composition is about 0.005% to about 6% by weight (ca. about 50 ppm to about 60,000 ppm), or about 0.1% to about 3% by weight (ca. about 1,000 ppm to about 30,000 ppm), based on the total weight of the compound. When the content of the UV absorber is less than about 0.005% by weight, efficient UV absorbability may not be obtained, and the lens thus undergoes serious yellowing upon exposure to UV radiation. On the other hand, when the UV absorber is used in an amount not less than about 6% by weight, it may not be completely soluble in the composition and polymerization may be seriously defective during curing. Examples of the UV absorber includes 2-(2′-hydroxy-5-methylphenyl)-2H-benzotriazole, 2-(2′-hydroxy-3′,5′-di-t-butylphenyl)-5-chloro-2H-benzotriazole, 2-(2′-hydroxy-3′-t-butyl-5′-methylphenyl)-5-chloro-2H-benzotriazole, 2-(2′-hydroxy-3′,5′-di-t-amylphenyl)-2H-benzotriazole, 2-(2′-hydroxy-3′,5′-di-t-butylphenyl)-2H-benzotriazole, 2-(2′-hydroxy-5′-t-butylphenyl)-2H-benzotriazole, 2-(2′-hydroxy-5′-t-octylphenyl)-2H-benzotriazole, 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-octyloxybenzophenone, 4-dodecyloxy-2-hydroxybenzophenone, 4-benzoxy-2-hydroxybenzophenone, 2,2′,4,4′-tetrahydroxybenzophenone, and 2,2′-dihydroxy-4,4′-dimethoxybenzophenone. The UV absorber may be used singly or in combination thereof. Preferred is the use of 2-(2′-hydroxy-5′-t-octylphenyl)-2H-benzotriazole or 2,2′-dihydroxy-4,4′-dimethoxybenzophenone, each of which exhibits good UV absorbability at a wavelength not more than about 400 nm and is well soluble in the composition according to one embodiment of the present invention.
- The composition may further comprise an organic dye well-known in the art. The organic dye may be added in a small amount within a well-known usage. In one embodiment of the present invention, 1-hydroxy-4-(p-toluidine)anthraquinone (available from Kyoungin Synthetic Corp.) and a PERINONE™ dye are used as organic dyes. The release agent that can be used in one embodiment of the present invention is selected from fluorinated nonionic surfactants, silicone-based nonionic surfactants, alkyl quaternary ammonium salts, phosphate esters and phosphonic acid esters. The release agent may be used singly or in combination thereof. One embodiment is the use of phosphate ester or phosphonic acid ester. The use of a metal- or glass mold as a mold, into which the composition is applied, enables improvement of demoldability. Examples of phosphate esters include isopropyl phosphate, diisopropyl phosphate, butyl phosphate, octyl phosphate, dioctyl phosphate, isodecyl phosphate, diisodecyl phosphate, tridecanol phosphate, bis(tridecanol) phosphate and a combination thereof. The tests in accordance with Examples according to one embodiment of the present invention demonstrate that ZELEC UN™ (available from Dupont Corp.), phosphate ester, exhibits the most superior demoldability. The content of the release agent is about 0.001% to about 5% by weight, or about 0.05% to about 2% by weight, with respect to the weight of the monomers, in view of good demoldability and high polymerization yield. The polymerization initiator that can be used in one embodiment of the present invention is an amine- or tin-compound. Examples of the tin compound include butyltin dilaurate, dibutyltin dichloride, dibutyltin diacetate, tin (I) octylate, dibutyltin dilaurate, tetrafluorotin, tetrachlorotin, tetrabromotin, tetraiodotin, methyltin trichloride, butyltin trichloride, dimethyltin dichloride, trimethyltin chloride, tributyltin chloride, triphenyltin chloride, dibutyltin sulfide and di(2-ethylhexyl)tin oxide. The tin compound may be used singly or in combination thereof. The use of the tin compound causes a high polymerization yield and no foaming. The content of the tin compound may be about 0.01% to about 5% by weight, based on the total weight of the composition.
- A plastic optical lens, in particular, a spectacle lens, is obtained by thermally curing the optical resin composition according to one embodiment of the present invention. In one embodiment, a method for producing a spectacle lens by thermally curing the composition is given as follows. First, after a polymerization initiator is added to the composition, air contained in a mixing container (i.e., reactor) is replaced by nitrogen, and the composition is stirred under reduced pressure for about 2 hours to about 5 hours. After completion of the stirring, the composition is defoamed under reduced pressure and injected into a mold. The mold may be a plastic gasket, or a glass- or metal-mold which is fixed with a polyester or polypropylene adhesive tape. The glass mold containing the composition is injected into a forced convection oven. The oven temperature is maintained at about 33° C.-about 37° C. over about 2 hours, elevated to about 38-about 42° C. over about 3 hours, elevated to about 115-about 125° C. over about 12 hours, maintained at about 115° C.-about 125° C. over about 2 hours and decreased to about 60° C.-about 80° C. over about 2 hours. Then, the composition is released from the mold to obtain an optical lens. The optical lens thus obtained is subjected to annealing at about 100° C. to about 120° C. for about 1 hours to about 4 hours to obtain an intended plastic optical lens.
- To improve optical properties, the plastic optical lens is subjected to hard-coating and multi-coating. The hard coating layer is formed by impregnating a coating composition into the optical lens, or coating the composition onto the surface thereof to a thickness of about 0.5 μm to about 10 μm by spin coating, followed by heating or UV curing. The coating composition comprises at least one sillane compound and at least one colloidal metal oxide as main ingredients. The sillane compound contains one functional group selected from epoxy, alkoxy and vinyl groups. Examples of metal oxide include silicon oxide, titanium oxide, antimony oxide, tin oxide, tungsten oxide and aluminum oxide.
- A multi-coating layer, i.e., an antireflective layer, is formed by vacuum-depositing or sputtering metal oxide such as silicon oxide, magnesium fluoride, aluminum oxide, zirconium oxide, titanium oxide, tantalum oxide and yttrium oxide. In one embodiment, silicon oxide and zirconium oxide are vacuum-deposited three times on the hard-coating layers of the both sides of the optical lens and silicon oxide is then vacuum-deposited on the resulting structure. If needed, an ITO layer between the silicon oxide and the zirconium oxide may be further formed as a water layer on the outermost layer.
- If necessary, the optical lens may be dyed with a dispersive dye or electrochromic dye.
- The optical resin composition is not particularly limited to plastic optical lenses. Accordingly, the composition may be utilized in various optical products.
- Embodiments of the present invention will be better understood from the following examples. These examples are not to be construed as limiting the scope of the invention.
- (1) Into a mixing container equipped with a stirrer were injected: a mixture of 53.2 g of hexamethylene diisocyanate (HMDI) and 362 g of isophorone diisocyanate (IPDI); 584.6 g of pentaerythritol tetrakis(3-mercaptopropionate) (PETMP); 20 g of 2-(2′-hydroxy-5-methylphenyl)-2H-benzotriazole as an UV absorber; 0.1 g of diisopropyl phosphate as a release agent; 20 ppm of 1-hydroxy-4-(p-toluidine)anthraquinone as a 1% organic dye solution (blue); 10 ppm of a PERINONE™ dye as a 1% organic dye solution (red); and 1.0 g of butyltin dilaurate as a polymerization initiator. The air in the mixing container was replaced by nitrogen. Then, the composition was stirred under reduced pressure for 2 hours. After completion of the stirring, the composition was defoamed under reduced pressure and injected into a glass mold fixed with a polyester adhesive tape (diopter (D): −5.00).
- (2) The glass mold containing the composition was thermally cured in a forced convection oven under the conditions of maintaining at 35° C. over 2 hours, elevating to 40° C. over 3 hours, elevating to 120° C. over 12 hours, maintaining at 120° C. over 2 hours and decreasing to 70° C. over 2 hours. Then, the composition was released from the mold to obtain an optical lens with a central thickness of 1 mm.
- (3) After the optical lens thus obtained in (2) was processed such that it has a diameter of 72 mm, it was ultrasonic-cleaned with an aqueous alkaline cleaning solution and annealed at 120° C. for 2 hours.
- (4) The optical lens thus obtained in (3) was dipped in a hard solution (ST11TN-8H™ available from Finecoat Co., Ltd.) and thermal-cured. Silicon oxide, zirconium oxide, silicon oxide, ITO, zirconium oxide, and a fluoride resin were sequentially vacuum-deposited on the both sides of the resulting lens to obtain a hard- and multi-coated optical lens.
- The physical properties of the optical lens were evaluated in accordance with the following manner. The results are shown in Table 1.
- 1. Refractive Index and Abbe Number:
- A DTM-1 model (Atacota Co., LTD.) was used as an Abbe refractometer.
- 2. Light Transmittance:
- A spectrophotometer was used to measure a light transmittance.
- 3. Specific Gravity:
- The specific gravity was calculated from the volume and weight which were measured by water-displacement.
- 4. Heat Resistance:
- The optical lens (Deopter: −5.00) was stood in an oven at 100° C. for 2 hours and allowed to cool to 70° C. over one hour. After the lens was taken out from the oven, it was observed whether or not the center of the lens was depressed. In a case where 8 or more out of 10 lenses are not center-depressed, it was represented by “O”. Otherwise, in a case where 3 or more out of the 10 lenses are center-depressed, it was represented by “X”.
- 5. Defoaming:
- Ten optical lenses were produced by injecting the composition into a mold and thermally-curing in the same manner as in Example 1. It was observed whether or not bubbles were formed in the edges or center of the optical lenses. The foaming degree of the optical lenses was classified into the following three grades: a) none out of ten lenses was foamed: grade “O”; b) one to three out of ten was foamed: grade “Δ”; and c) four or more out of ten were foamed: grade “X”.
- 6. Impact Resistance:
- A steel ball with a weight of 16.8 g (FDA standard weight) was let fall from a height of 127 cm onto the center of ten optical lenses (deopter: −5.00) which were hard-coated and multi-coated. At this time, in a case where none of the ten optical lenses was broken, “O” was graded. Otherwise, in a case where at least one out of the ten was broken, “X” was graded.
- 7. Light Resistance:
- The optical lenses (diopter: −5.00) were exposed to QUV/Spray model (5w) available from Q-Pannellad products for 200 hours. When the lenses were not changed in color, “O” was graded. Otherwise, “X” was graded.
- 8. Demoldability:
- A mixture of monomers, additives and a polymerization initiator was vacuum-defoamed, injected into a glass mold and thermally-cured to produce a lens. In a case where the lens was released from the mold without causing damage to the mold, the lens was graded “O”. Otherwise, the lens was graded “X”.
- In the same manner as in Example 1, optical resin compositions were each prepared in accordance with the compositions as set forth in Tables 1 to 3 and a lens was produced from the composition. The results are shown in Tables 1 to 3.
- An optical resin composition was prepared in the same manner as in Example 1, except that 300% by weight of diallyl therephthalate and 300% by weight of ethylene glycol bis(allyl)carbonate were mixed with 400% by weight of the component (A) represented by Formula (I) below:
-
CH2═CHCH2OCO-R1-COO-(R2OCO-R1-COO)m—CH2CH═CH2 (Component A) Formula (I) - wherein R1 is benzene; R2 is a compound containing 4 carbon atoms; and m represents 1 to 4 (83%), 5 to 10 (14%), and 11 to 20 (3%).
- In the same manner as in Comparative Example 1, an optical resin composition was prepared in accordance with the composition as set forth in Table 4 and a lens was then produced from the composition. The results are shown in Table 4.
-
TABLE 1 Examples Ex. 1 Ex. 2 Ex. 3 Ex. 4 Ex. 5 Ex. 6 Ex. 7 Ex. 8 Monomer IPDI 53.2 100.5 155.5 204.8 252.8 299.7 345.5 390.0 (g) HMDI 362 317.8 274.6 232.8 191.3 151.2 112.0 74.0 PETMP 584.6 577.2 569.9 562.8 555.8 549.1 542.5 536.0 PETMA UV HMBT 20 absorber HBCBT 20 (g) HBMCBT 20 10 HAPBT 15 HDBPPBT 20 HBPBT 26 HOPBT 20 DHBP Release IPPT agent DIPP 1.0 1.0 (g) BP OP 1.0 1.0 DOP 1.0 1.0 1.0 1.0 IDP DIDP TDP Polymerization BTL 1.0 1.5 initiator BTC 1.0 1.0 0.06 3.8 (g) BTA 0.8 3.0 1% dye solution HTAQ 20 20 20 20 20 20 20 20 (ppm) PRD 10 10 10 10 10 10 10 10 Physical Refractive 1.555 1.555 1.555 1.556 1.556 1.556 1.556 1.557 properties index (nD) Abbe Number 44 44 44 43 43 43 43 42 Light 98.0 98.0 98.0 98.0 98.0 98.0 98.0 98.0 transmittance (%) Specific gravity 1.27 1.27 1.27 1.27 1.27 1.27 1.27 1.27 Heat resistance x x ∘ ∘ ∘ ∘ ∘ ∘ Foaming ∘ ∘ ∘ ∘ ∘ ∘ ∘ ∘ Impact resistance ∘ ∘ ∘ ∘ ∘ ∘ ∘ x Light resistance ∘ ∘ ∘ ∘ ∘ ∘ ∘ ∘ Demoldability ∘ ∘ ∘ ∘ ∘ ∘ ∘ ∘ -
TABLE 2 Examples Ex. 9 Ex. 10 Ex. 11 Ex. 12 Ex. 13 Ex. 14 Ex. 15 Ex. 16 Monomer IPDI 433.5 433.5 433.5 204.8 252.8 299.7 345.5 390.0 (g) HMDI 36.5 36.5 36.5 232.8 191.3 151.2 112.0 74.0 PETMP 530.0 530.0 530.0 562.8 555.8 549.1 542.5 536.0 PETMA UV HMBT 20 absorber HBCBT 20 (g) HBMCBT 20 HAPBT 20 HDBPPBT 20 HBPBT 20 HOPBT 20 DHBP 20 Release IPPT 1.0 1.0 agent DIPP 1.0 1.0 (g) BP 1.0 1.0 OP 1.0 1.0 DOP IDP DIDP TDP Polymerization BTL 1.0 1.0 initiator BTC 1.0 1.0 1.0 (g) BTA 1.0 1.0 1.0 1% dye solution HTAQ 20 20 20 20 20 20 20 20 (ppm) PRD 10 10 10 10 10 10 10 10 Physical Refractive 1.557 1.557 1.555 1.556 1.556 1.556 1.556 1.557 properties index (nD) Abbe Number 42 42 44 43 43 43 43 42 Light 98.0 98.0 98.0 98.0 98.0 98.0 98.0 98.0 transmittance (%) Specific gravity 1.27 1.27 1.27 1.27 1.27 1.27 1.27 1.27 Heat resistance ∘ ∘ ∘ ∘ ∘ ∘ ∘ ∘ Foaming Δ Δ Δ ∘ ∘ ∘ ∘ ∘ Impact resistance x x x ∘ ∘ ∘ ∘ x Light resistance ∘ ∘ ∘ ∘ ∘ ∘ ∘ ∘ Demoldability ∘ ∘ ∘ ∘ ∘ ∘ ∘ ∘ -
TABLE 3 Examples Ex. 17 Ex. 18 Ex. 19 Ex. 20 Ex. 21 Ex. 22 Ex. 23 Ex. 24 Monomer IPDI 53.2 100.5 155.5 204.8 252.8 261.0 490.0 (g) HMDI 362 317.8 274.6 232.8 191.3 197.0 19.0 476.3 PETMP 584.6 577.2 569.9 562.8 389.3 287.3 565.0 523.6 PETMA 166.6 254.3 UV HMBP 20 absorber HOOBP 25 15 20 (g) DOHBP 15 20 BHBP 20 THBP DHMBP BHMCBT 5 20 HOPBT 5 Release IPPT 1.0 2.0 agent DIPP 0.01 (g) BP 0.05 OP DOP 1.5 IDP 1.0 DIDP 0.8 TDP 3.6 Polymerization BTL initiator BTC 0.01 0.3 0.5 1.0 1.0 (g) BTA 1.0 1.0 TEA 1.0 1% dye solution HTAQ 20 20 20 20 20 20 20 20 (ppm) PRD 10 10 10 10 10 10 10 Physical Refractive 1.555 1.555 1.555 1.556 1.556 1.556 1.556 1.557 properties index (nD) Abbe Number 44 44 44 43 43 43 43 42 Light 98.0 98.0 98.0 98.0 98.0 98.0 98.0 98.0 transmittance (%) Specific gravity 1.27 1.27 1.27 1.27 1.27 1.27 1.27 1.27 Heat resistance x x x ∘ ∘ ∘ ∘ ∘ Foaming x ∘ ∘ ∘ x ∘ x x Impact resistance ∘ ∘ ∘ ∘ ∘ ∘ x ∘ Light resistance ∘ ∘ ∘ ∘ ∘ ∘ ∘ ∘ Demoldability ∘ ∘ ∘ ∘ ∘ ∘ ∘ ∘ -
TABLE 4 Comparative Examples Comp. Comp. Comp. Comp. Comp. Comp. Comp. Comp. Ex. 1 Ex. 2 Ex. 3 Ex. 4 Ex. 5 Ex. 6 Ex. 7 Ex. 8 Monomer DAIP 300.0 300.0 300.0 (g) ρ-DAIPE 400.0 400.0 400.0 DBzM 100.0 100.0 CR-39 300.0 200.0 200.0 1000.0 XDI 441.0 441.0 520.0 520.0 PETMP 559.0 559.0 BMEMP 480.0 480.0 UV HMBP 2.0 absorber HOOBP 2.0 (g) DOHBP 2.0 2.0 20.0 20.0 BHBP 20.0 20.0 Release NS 0.01 0.01 agent HS 0.01 (g) IPPT 1.0 1.0 BP 1.0 OP 1.0 Polymerization IPP 3.0 3.0 3.0 initiator NPP 3.0 (g) BTC 1.0 1.0 1.0 BTA 1.0 1% dye solution HTAQ 20 20 20 20 (ppm), pigment PRD 10 10 10 10 Inorganic pigment 0.1 0.1 0.1 0.2 solution Physical Refractive 1.550 1.550 1.548 1.498 1.665 1.665 1.593 1.593 properties index (nD) Abbe Number 37 37 38 58 32 32 42 42 Light 98.0 98.0 98.0 98.0 98.0 98.0 98.0 98.0 transmittance (%) Specific gravity 1.27 1.27 1.27 1.27 1.34 1.34 1.32 1.32 Heat resistance ∘ ∘ ∘ x x x x x Foaming ∘ ∘ ∘ ∘ ∘ ∘ ∘ ∘ Impact resistance x x x x x x x x Light resistance ∘ ∘ ∘ x ∘ ∘ ∘ ∘ Demoldability ∘ ∘ ∘ ∘ ∘ ∘ ∘ ∘ - List of Abbreviations in Tables 1 to 4
- Monomers
- IPDI: isophorone diisocyanate
- HMDI: hexamethylene diisocyanate
- PETMP: pentaerythritol tetrakis(3-mercaptopropionate)
- PETMA: pentaerythritol tetrakis(mercaptoacetate)
- XDI: m-xylene-diisocyanate
- DBzM: dibenzyl maleate
- DAIP: diallyl isophthalate
- P-DAIPE: ethylene glycol polyester oligomer isophthalate
- CR-39: diethylene glycol bis(allyl)carbonate
- BMEMP: 1,2-bis(mercaptoethyl)-3-mercaptopropan
- UV Absorbers
- HMBT: 2-(2′-hydroxy-5-methylphenyl)-2H-benzotriazole
- HBCBT: 2-(2′-hydroxy-3′,5′-di-t-butylphenyl)-5-chloro-2H-benzotriazole
- HBMCBT: 2-(2′-hydroxy-3′-t-butyl-5′-methyphenyl)-5-chloro-2H-benzotriazole
- HAPBT: 2-(2′-hydroxy-3′,5′-di-t-amylphenyl)-2H-benzotriazole
- HDBPBT: 2-(2′-hydroxy-3′,5′-di-t-butylphenyl)-2H-benzotriazole
- HBPBT: 2-(2′-hydroxy-5′-t-butylphenyl)-2H-benzotriazole
- HOPBT: 2-(2′-hydroxy-5′-t-octylphenyl)-2H-benzotriazole
- DHBP: 2,4-dihydroxybenzophenone
- HMBP: 2-hydroxy-4-methoxybenzophenone
- HOOBP: 2-hydroxy-4-octyloxybenzophenone
- DOHBP: 4-dodecyloxy-2-hydroxybenzophenone
- BHBP: 4-benzoxy-2-hydroxybenzophenone
- THBP: 2,2′,4,4′-tetrahydroxybenzophenone
- DHMBP: 2,2′-dihydroxy-4,4′-dimethoxybenzophenone
- BHMCBT: 2-(3′-t-butyl-2′-hydroxy-methylphenyl)-5-chlorobenzotriazole
- Release Agents
- IPPT: isopropyl phosphate
- DIPP: diisopropyl phosphate
- BP: butyl phosphate
- OP: octyl phosphate
- DOP: dioctyl phosphate
- IDP: isodecyl phosphate
- DIDP: diisodecyl phosphate
- TDP: tridecanol phosphate
- BTDP: bis(tridecanol) phosphate
- 1% Dye Solution
- 1 g of each organic dye was dissolved in 99 g of toluene to prepare 1% organic dye solutions.
- HTAQ: 1-hydroxy-4-(p-toluidine)anthraquinone
- PRD: Perinone dye
- Pigment Dispersion
- 0.9 g of dye particles (PB-80™ available from Daiichi Kasei Co., Ltd.; diameter of 0.3 to 2 μm), 0.1 g of dye particles (500RS available from Toso Co., Ltd.) and 0.175 g of polyoxyethylene nonylether are dispersed in CR-39 100 g with the use of a ball mill for 2 hours and filtered through a filter paper (2 μm) to prepare a pigment dispersion.
- Polymerization Initiators
- BTL: butyltin dilaurate
- BTC: dibutyltin dichloride
- BTA: dibutyltin diacetate
- TEA: triethylamine
- IPP: diisopropyl peroxydicarbonate
- NPP: di-n-propyl peroxydicarbonate
- According to at least one embodiment, as apparent from the foregoing, the optical resin composition has superior impact resistance as well as light-weight, superior moldability, excellent dyeing ability, a high Abbe number and good transparency. The optical lens produced from the composition maintains superior impact resistance even after hard-coating and multi-coating (anti-reflective coating). Based on these advantages, the resin composition may be widely utilized in the optical field including multicoated spectacle lenses.
- While the above description has pointed out novel features of the invention as applied to various embodiments, the skilled person will understand that various omissions, substitutions, and changes in the form and details of the device or process illustrated may be made without departing from the scope of the invention. Therefore, the scope of the invention is defined by the appended claims rather than by the foregoing description. All variations coming within the meaning and range of equivalency of the claims are embraced within their scope.
Claims (13)
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KR1020060085437A KR100689867B1 (en) | 2006-09-06 | 2006-09-06 | Optical resin composition having high impact and method of preparing optical lens using it |
KR10-2006-0085437 | 2006-09-06 | ||
PCT/KR2007/003863 WO2008029994A1 (en) | 2006-09-06 | 2007-08-13 | Optical resin composition having excellent impact resistance and method for fabricating optical lens using the same |
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PCT/KR2007/003863 Continuation WO2008029994A1 (en) | 2006-09-06 | 2007-08-13 | Optical resin composition having excellent impact resistance and method for fabricating optical lens using the same |
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US8097190B2 US8097190B2 (en) | 2012-01-17 |
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US (1) | US8097190B2 (en) |
KR (1) | KR100689867B1 (en) |
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WO (1) | WO2008029994A1 (en) |
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Also Published As
Publication number | Publication date |
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US8097190B2 (en) | 2012-01-17 |
KR100689867B1 (en) | 2007-03-09 |
CN101139430A (en) | 2008-03-12 |
CN101139430B (en) | 2010-12-22 |
WO2008029994A1 (en) | 2008-03-13 |
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